Jump to content
SAU Community

Recommended Posts

I just filled up with V-Power racing for the first time (normally use BP ultimate).

I don't know if it's a coincidence or what but the car is driving like absolute crap. It started off missing as soon as I made any boost and deteriorated to the point where it is even missing at idle now.

The car was tuned on BP ultimate and has never run on anything else since then. Does anyone think the fuel is to blame?

I spoke to a friend who is fairly cluey with this type of thing and he said his Bosch 040 didn't like the V-Power racing either and mentioned something about ethanol enriched fuels being thicker than those without.

Anyone got any ideas? I advanced the timing a few degrees and that seemed to improve things slightly, but it still wasn't anywhere near behaving normally.

Either way, I am going to dump the fuel and go back to Ultimate and see if that resolves the issue.

Link to comment
https://www.sau.com.au/forums/topic/170793-shell-v-power-racing/
Share on other sites

possibly because its a higher octane fuel, better then anything else offered on pump. Harder for it to preignite, or even ignite for that matter. Hence why the tuning is normally required. Vice versa if you were to stick a low octane crappier fuel in then what you were tuned on originally, it would preignite and ignite a great deal easier, generally when knock sets in the most.

i've never had a problem. my GTR was tuned on 98. i put in the V power racing. ran fine. maybe even a touch better. the alfa race car, we had it tuned (yes it has carbies and a dizzy!) on 98. we've since run it on the v power racing and elf LMS and it was fine. It's not a major change I can't see how it made your car run poorly unless it was just a bad batch of fuel.

if it is pre-igniting you have a problem with a cylinder/piston. i think you mean detonation. they are 2 different things. pre-ignition is where there is a hot spot in the bore or piston that is igniting the fuel before the spark. on cars with carbies they will continue to run after you turn the key off untill the hot spot cools. and it melts your spark plugs, and usually ends in a warped head/cracked piston. detonation is where the fuel doesn't burn in a even pattern. instead of burning in a wave it just all ignites at once.

i don't think the tuning has anything to do with it, otherwise normal aussie built cars would run like crap when you put ultimate in there since they are only tuned for 91 octane fuel. i'd say it is a bad batch of fuel. i stopped using shell fuel after i went to a servo one night and an ambulance in front of me started then stalled before it got out of the driveway after filling up and wouldn't start again. it turned out there was water in the fuel. not sure if it was the servo's fault of a bad batch, but after that i stay clear of it just to be on the safe side.

ok i always thought that both were to do with the fuel mixture burning before it is intended to. ie. before the spark plug ignites the air/fuel mix. Whether it was to do with a hot spot or just the fuel burning unevenly was irrelevant. Thought it was the act of it occuring rather then what caused it. Suppose you learn something new everyday.

Thanks for the help, problem solved.

Stupid leaking cooler join.......Haven't driven it yet but it was literally hanging off :P I had the exhaust manifold off the other day replacing a blown gasket and mustn't have tightened one of the clamps enough.

I will stop bagging the V Power racing now :D

What fuel the car was tuned on definitely makes a difference, but i have ran vpower racing previously on my r33 and it ran good. My mate had issues with it in his bmw e46 325 though, he just tried it in his evo8 gsr yesterday and it seems to be running good as well.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • Seat of the pants assessment of the new intake: The car is way less "doughy" when hitting the loud pedal, especially off idle when stopped or in traffic, I did use a cheapo lazer thermal thingo to measure the temp around where the pod filter got its air, it was between 55 - 60°C, in saying this the car was shut off and not moving, so the OEM intake pipe was not supplying any fresh air to where the pod was when the car was at least moving A weird bonus was induction noise on the throttle in the cabin increased a bit,  I was worried that I was actually going to lose some of that induction noise I love so much, outside though, when I got the daughter to do a WOT drive by pass for me, the induction noise has increased alot when on the throttle, not quite ITB doort, but well up there I'm extremely happy with the results and have been exploring the country roads in the region  As for house mods: 1.New front fence is up and is awesome, it really upgraded how the joint looks from the street, and the added security is nice 2. Electricians have replace some interior lights, and with more lighting in the garage, a few new motion detecting lights out the front above the garage, front room, and at the front door, which I have already found heaps helpful coming and going, also now has fancy pants CCTV all round the house The only hold point for power though is the solar and batteries due to supply issues, although this will happen over the next few weeks 3. I have done a heap of landscaping out the front and I'm almost ready to do a new small retaining wall with some nice blocks to replace the brick and cemented in rocks around the raised garden beds cemented in river stone "was the fashion at the time" the house was built. I currently have a pallet of retaining wall blocks and 2 bulka bags of 20mm blue metal to replace the wood chip that is in the raised garden beds around the house 4. I now have 3 big raised garden beds for out the back to grow some vegetables, about 70cm high, 200cm long and 100cm wide 5. My 2 compost bins are already pretty full with brown, green and kitchen waste from the landscaping I'vedone so far, but they will probably take a few months to break down, so anything else that gets chopped, trimmed, and kitchen waste will just start filling the base of the raised garden beds to about 30cm before I start throwing 40cm of good compost, and stuff, for the vegetables to grow in, I'll need a few ton of compost and soil, but the local supplier can sent me bulka bags of the stuff Basically the logs, wood chips and a few strategically placed rocks for drainage, will give the beds some good organic materials down low to break down over time, and they will hold moisture during the warmer months to save the water in my big arse water tank if we don't get alot of rain So, all in all, the car and house mods are going well, and I'm really enjoying being retired, I sleep in too 0700 and slowly plod around inside until I feel like actually doing anything, and only work in the yard for as long as want, which has actually been alot over the last few weeks,  although when you look at it, it seems that not a huge amount of work has been done,  until I look at the before I started the work pics Happy days and good times indeed 
    • hahaha yeah. Plan is to get side skirts and probably just rear pods. But going to do them one-by-one. I've got a set that I really like from RHDJapen, but that one isn't shipped to AU. So need to find someone who can get it for me
    • Here's an idea, answer the questions I asked you as they are trying to work out WHY the LSD will be binding up in a straight line.
    • You haven't driven many modern cars then have you? Most of them have sfa steering feel with their stupid electric bullshit steering systems.
×
×
  • Create New...